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* sysdeps/i386/i686/mempcpy.S: Fix typos.

	* sysdeps/i386/i686/strcmp.S: New file.
	* sysdeps/i386/i686/memcpy.S: New file.
This commit is contained in:
Ulrich Drepper 1999-01-07 22:36:12 +00:00
parent 7ffe2de674
commit 6923133b10
5 changed files with 112 additions and 5 deletions
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4
ChangeLog
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@ -1,7 +1,11 @@
1999-01-07 Ulrich Drepper <drepper@cygnus.com>
* sysdeps/i386/i686/mempcpy.S: Fix typos.
* sysdeps/i386/i686/memset.S: New file.
* sysdeps/i386/i686/bzero.S: New file.
* sysdeps/i386/i686/strcmp.S: New file.
* sysdeps/i386/i686/memcpy.S: New file.
* sysdeps/unix/sysv/linux/Makefile [subdir=time] (sysdep_routines):
Add ntp_adjtime and ntp_gettime.

51
sysdeps/i386/i686/memcpy.S Normal file
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@ -0,0 +1,51 @@
/* Copy memory block and return pointer to beginning of destination block
For Intel 80x86, x>=6.
This file is part of the GNU C Library.
Copyright (C) 1999 Free Software Foundation, Inc.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1999.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include <sysdep.h>
#include "asm-syntax.h"
/* memcpy:
INPUT PARAMETER:
dest (sp + 4)
src (sp + 8)
len (sp + 12)
*/
ENTRY(memcpy)
movl 12(%esp), %ecx
movl %edi, %eax
movl 4(%esp), %edi
movl %esi, %edx
movl 8(%esp), %esi
cld
shrl $1, %ecx
jnc 1f
movsb
1: shrl $1, %ecx
jnc 2f
movsw
2: rep
movsl
movl %eax, %edi
movl %edx, %esi
movl 4(%esp), %eax
ret
END(memcpy)

8
sysdeps/i386/i686/mempcpy.S
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@ -1,7 +1,7 @@
/* Copy memory block and return pointer to following byte.
For Intel 80x86, x>=6.
This file is part of the GNU C Library.
Copyright (C) 1998 Free Software Foundation, Inc.
Copyright (C) 1998, 1999 Free Software Foundation, Inc.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
The GNU C Library is free software; you can redistribute it and/or
@ -22,7 +22,7 @@
#include <sysdep.h>
#include "asm-syntax.h"
/* strtok:
/* mempcpy:
INPUT PARAMETER:
dest (sp + 4)
src (sp + 8)
@ -30,11 +30,11 @@
*/
ENTRY(__mempcpy)
movl 12(%esp), %ecx
movl %edi, %eax
movl 4(%esp), %edi
movl %esi, %edx
movl 8(%esp), %esi
movl 12(%esp), %ecx
cld
shrl $1, %ecx
jnc 1f
@ -47,5 +47,5 @@ ENTRY(__mempcpy)
xchgl %edi, %eax
movl %edx, %esi
ret
END(mempcpy)
END(__mempcpy)
weak_alias (__mempcpy, mempcpy)

6
sysdeps/i386/i686/memset.S
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@ -2,6 +2,7 @@
Highly optimized version for ix86, x>=6.
Copyright (C) 1999 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1999.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
@ -69,7 +70,10 @@ ENTRY (memset)
rep
stosb
1: movl 8(%esp), %eax
1:
#ifndef memset
movl 8(%esp), %eax
#endif
popl %edi
ret
END (memset)

48
sysdeps/i386/i686/strcmp.S Normal file
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@ -0,0 +1,48 @@
/* Highly optimized version for ix86, x>=6.
Copyright (C) 1999 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1999.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include <sysdep.h>
#include "asm-syntax.h"
/*
INPUT PARAMETERS:
s1 (sp + 4)
s2 (sp + 8)
*/
.text
ENTRY (strcmp)
movl 4(%esp), %ecx
movl 8(%esp), %edx
1: movb (%ecx), %al
incl %ecx
cmpb (%edx), %al
jne 2f
incl %edx
testb %al, %al
jnz 1b
xorl %eax, %eax
jmp 3f
2: movl $1, %eax
ja 3f
negl %eax
3: ret
END (strcmp)